Agilent Technologies TwisTorr 84 FS Notice De Mode D'emploi page 306

17 Technical Information
Inlet screen installation
prevent the rotor blades from being damaged by debris. The inlet
screen, however, does reduce the pumping speed as per following
table:
The inlet screen is fitted in the upper part of the pump, as shown in
the figure.
306/336
Reduction in pumping speed (%)
Ar
X3502-
68000
20%
X3502-
68001
N
2
18%
TwisTorr 84 FS User Manual / 87-901-043-01(B)
He H
2
7% 5%